College rugby, more specifically rugby union, is played throughout universities in the United States of America. Between 2004 and 2010, rugby was the fastest growing sport in the United States when its popularity increased by roughly 350% (when the estimated active participants increased from 18,500 in 2006 to 65,000 in 2010).. College rugby is governed by USA Rugby, and does not fall under the auspices of the NCAA, except for 27 NCAA women's programs. Women's rugby has been classified as an NCAA Emerging Sport since 2002.